207 results match your criteria: "Virginia Polytechnic and State University[Affiliation]"
Ecology
December 2024
Wildlife Research and Monitoring Section, Ministry of Natural Resources and Forestry, Peterborough, Ontario, Canada.
Animals within social groups respond to costs and benefits of sociality by adjusting the proportion of time they spend in close proximity to other individuals in the group (cohesion). Variation in cohesion between individuals, in turn, shapes important group-level processes such as subgroup formation and fission-fusion dynamics. Although critical to animal sociality, a comprehensive understanding of the factors influencing cohesion remains a gap in our knowledge of cooperative behavior in animals.
View Article and Find Full Text PDFViruses
September 2024
Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic and State University, Blacksburg, VA 24061, USA.
For nearly twenty years, gnotobiotic (Gn) pigs have been used as a model of human norovirus (HuNoV) infection and disease. Unique in their ability to develop diarrhea and shed virus post oral challenge, Gn pigs have since been used to evaluate the infectivity of several genogroup II HuNoV strains. Nearly all major pandemic GII.
View Article and Find Full Text PDFJ Undergrad Neurosci Educ
July 2024
School of Neuroscience, Virginia Polytechnic and State University, Blacksburg, VA 24061.
Undergraduate neuroscience researchers and educators have a vital voice in working with policymakers to raise public awareness and increase support and funding for neuroscience. While there are many avenues and opportunities to become involved in neuroscience advocacy, finding the most effective training strategies, resources, and opportunities for involvement can sometimes be difficult and overwhelming. To address this challenge and inform faculty of science advocacy opportunities for undergraduates, we organized a mini-symposium at the 2023 Faculty for Undergraduate Neuroscience (FUN) Workshop.
View Article and Find Full Text PDFCommun Biol
July 2024
Department of Entomology, Virginia Polytechnic and State University, Blacksburg, VA, USA.
Understanding the sex determination pathway and its disruptions in mosquitoes is critical for the effective control of disease vectors through genetic manipulations based on sex separation. When male hybrids of Aedes aegypti females and Ae. mascarensis males are backcrossed to Ae.
View Article and Find Full Text PDFSci Total Environ
October 2024
Department of Population Health Sciences, Virginia Polytechnic and State University, Blacksburg, VA, USA. Electronic address:
There is growing evidence that high ambient temperatures are associated with a range of adverse health outcomes. Further evidence suggests differences in rural versus non-rural populations' vulnerability to heat-related adverse health outcomes. The current project aims to 1) refine estimated associations between maximum daily heat index (HI) and emergency department (ED) visits in regions of Virginia, and 2) compare associations between maximum daily HI and ED visits in rural versus non-rural areas of Virginia and within those areas, for persons 65 years of age and older versus those younger than 65 years.
View Article and Find Full Text PDFUrban evolutionary ecology is inherently interdisciplinary. Moreover, it is a field with global significance. However, bringing researchers and resources together across fields and countries is challenging.
View Article and Find Full Text PDFPLoS One
June 2024
Department of Animal and Poultry Sciences, Virginia Polytechnic and State University, Blacksburg, Virginia, United States of America.
Dogs are often housed alone in shelter settings to reduce injury and disease spread. However, social isolation can be a stressor for dogs. Prior studies have suggested that cohousing can produce behavioral and physiological benefits.
View Article and Find Full Text PDFJ Environ Manage
May 2024
Department of Biological System Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA, 24060, United States; Stantec Consulting Services Inc, Lexington, KY, 40513, United States. Electronic address:
Urbanization changes land cover through the expansion of impermeable surfaces, leading to a significant rise in runoff, sediment, and nutrient loading. The quality of stormwater is related to land use and is highly variable. Currently, stormwater is predominantly described through watershed models that rely minimally, if at all, on field monitoring data.
View Article and Find Full Text PDFEnviron Sci Technol
March 2024
Virginia Polytechnic and State University, Civil and Environmental Engineering, 418 Durham Hall, Blacksburg, Virginia 24061, United States.
Gaps in the United States Environmental Protection Agency (US EPA) Lead and Copper Rule (LCR) leave some consumers and their pets vulnerable to high cuprosolvency in drinking water. This study seeks to help proactive utilities who wish to mitigate cuprosolvency problems through the addition of orthophosphate corrosion inhibitors. The minimum doses of orthophosphate necessary to achieve acceptable cuprosolvency in relatively new copper pipe were estimated as a function of alkalinity via linear regressions for the 90th, 95th, and 100th percentile copper tube segments ( > 0.
View Article and Find Full Text PDFJ Hazard Mater
May 2024
National Engineering Research Center for Efficient Utilization of Soil and Fertilizer Resources, College of Resources and Environment, Shandong Agricultural University, Taian 271018, Shandong Province, People's Republic of China. Electronic address:
It remains unclear how symbiotic microbes impact the growth of peanuts when they are exposed to the pollutants cadmium (Cd) and microplastics (MPs) simultaneously. This study aimed to investigate the effects of endophytic bacteria Bacillus velezens SC60 and arbuscular mycorrhizal fungus Rhizophagus irregularis on peanut growth and rhizosphere microbial communities in the presence of Cd at 40 (Cd40) or 80 (Cd80) mg kg combined without MP or the presence of low-density polyethylene (LDPE) and poly butyleneadipate-co-terephthalate (PBAT). This study assessed soil indicators, plant parameters, and Cd accumulation indicators.
View Article and Find Full Text PDFElife
March 2024
Department of Neurological Sciences, Larner College of Medicine, University of Vermont, Burlington, United States.
Gene variants that hyperactivate PI3K-mTOR signaling in the brain lead to epilepsy and cortical malformations in humans. Some gene variants associated with these pathologies only hyperactivate mTORC1, but others, such as , , and , hyperactivate both mTORC1- and mTORC2-dependent signaling. Previous work established a key role for mTORC1 hyperactivity in mTORopathies, however, whether mTORC2 hyperactivity contributes is not clear.
View Article and Find Full Text PDFTetrahedron Lett
January 2024
Department of Chemistry and Biochemistry, University of North Carolina at Greensboro, Greensboro, NC 27402, United States.
Diepoxin-η () is a cytotoxic fungal metabolite belonging to the spirobisnaphthalene structural class. In this study, four mono fluorinated analogues (-) of diepoxin-η () were semisynthesized in a single-step by selectively fluorinating the naphthalene moiety with Selectfluor. The structures of were elucidated using a set of spectroscopic and spectrometric techniques and were further confirmed by means of TDDFT-ECD and isotropic shielding tensors calculations.
View Article and Find Full Text PDFBMC Biol
January 2024
Department of Entomology, Virginia Polytechnic and State University, Blacksburg, VA, USA.
Background: Understanding genome organization and evolution is important for species involved in transmission of human diseases, such as mosquitoes. Anophelinae and Culicinae subfamilies of mosquitoes show striking differences in genome sizes, sex chromosome arrangements, behavior, and ability to transmit pathogens. However, the genomic basis of these differences is not fully understood.
View Article and Find Full Text PDFAm J Cardiol
December 2023
Department of Radiology, The Children's Hospital of Philadelphia/The Perelman School of Medicine, The University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
Patients with a single ventricle develop aortopulmonary collaterals (APCs) whose flow has been shown to be inversely proportional to cerebral blood flow (CBF) in a previous cross-sectional study. Longitudinal CBF and APC flow in patients with Fontan physiology adjusting for brain injury (BI) has never been reported. Decreased CBF and BI may adversely impact neurodevelopment.
View Article and Find Full Text PDFViruses
August 2023
Department of Biomedical Sciences and Pathobiology, Virginia Polytechnic and State University, Blacksburg, VA 24061, USA.
bioRxiv
January 2024
Department of Neurological Sciences, Larner College of Medicine, University of Vermont, Burlington VT, 05405, USA.
Gene variants that hyperactivate PI3K-mTOR signaling in the brain lead to epilepsy and cortical malformations in humans. Some gene variants associated with these pathologies only hyperactivate mTORC1, but others, such as , , and , hyperactivate both mTORC1- and mTORC2-dependent signaling. Previous work established a key role for mTORC1 hyperactivity in mTORopathies, however, whether mTORC2 hyperactivity contributes is not clear.
View Article and Find Full Text PDFEquine Vet J
March 2024
Melbourne Veterinary School, Faculty of Science, The University of Melbourne, Parkville, Victoria, Australia.
Background: There is a high prevalence of obesity in ponies and pleasure horses. This may be associated with equine metabolic syndrome and an increased risk of laminitis. Body condition scoring (BCS) systems are widely used but are subjective and not very sensitive.
View Article and Find Full Text PDFBrain Res
October 2023
Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, USA; Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Richmond, VA, USA.
Nicotine and tobacco-related deaths remains a leading cause of preventable death and disease in the United States. Several studies indicate that modulation of the endocannabinoid system, primarily of the endocannabinoid 2-Arachidonoylglycerol (2-AG), alters nicotinic dependence behaviors in rodents. This study, using transgenic knock-out (KO) mice, evaluated the role of the two 2-AG biosynthesis enzymes, (Diacylglycerol lipase-α) DAGL-α and DAGL-β in spontaneous nicotine withdrawal.
View Article and Find Full Text PDFNat Commun
June 2023
Zachry Department of Civil and Environmental Engineering, Texas A&M University, College Station, TX, USA.
Surface water reservoirs are increasingly being relied upon to meet rising demands in the context of growing population and changing climate. However, the amount of water available in reservoirs (and the corresponding trends) have not been well quantified at the global scale. Here we use satellite observations to estimate the storage variations of 7245 global reservoirs from 1999 to 2018.
View Article and Find Full Text PDFJ Neurosci
July 2023
Department of Neurological Sciences, University of Vermont, Burlington, VT 05405
The epileptic brain is distinguished by spontaneous seizures and interictal epileptiform discharges (IEDs). Basic patterns of mesoscale brain activity outside of seizures and IEDs are also frequently disrupted in the epileptic brain and likely influence disease symptoms, but are poorly understood. We aimed to quantify how interictal brain activity differs from that in healthy individuals, and identify what features of interictal activity influence seizure occurrence in a genetic mouse model of childhood epilepsy.
View Article and Find Full Text PDFPestic Biochem Physiol
May 2023
Molecular Physiology and Toxicology Laboratory, Department of Entomology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, United States of America. Electronic address:
Small hive beetle (Aethina tumida) management has been highly dependent upon chemical and mechanical control over the past two decades; however, many of these methods have not been consistently effective or safe for European honey bee (Apis mellifera) colonies. Here we explore the behavioral and physiological effects of the attractants isopentyl acetate and pollen patty upon A. tumida adults, and also investigate the mixture of attractants with repellent compounds, which were previously untested against A.
View Article and Find Full Text PDFJ Exp Anal Behav
July 2023
Georgia Southern University, Department of Psychology, Statesboro, GA, USA.
Prior research has produced mixed results on whether human social interaction can function as a reinforcer for dog behavior. However, that research used either short durations of social interaction or rapid, repeated trials such that satiation could have been a factor. We investigated whether two durations of social interaction (30 s or 4 s petting plus vocal praise) would maintain more responding than extinction, than each other, or than food.
View Article and Find Full Text PDFPhys Rev E
February 2023
Research School of Physics, The Australian National University, Canberra, 2601, Australia.
We develop a mesoscopic approach to model the nonequilibrium behavior of membranes at the cellular scale. Relying on lattice Boltzmann methods, we develop a solution procedure to recover the Nernst-Planck equations and Gauss's law. A general closure rule is developed to describe mass transport across the membrane, which is able to account for protein-mediated diffusion based on a coarse-grained representation.
View Article and Find Full Text PDFMol Cell Neurosci
June 2023
Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address:
Chemical platforms that facilitate both the identification and elucidation of new areas for therapeutic development are necessary but lacking. Activity-based protein profiling (ABPP) leverages active site-directed chemical probes as target discovery tools that resolve activity from expression and immediately marry the targets identified with lead compounds for drug design. However, this approach has traditionally focused on predictable and intrinsic enzyme functionality.
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